SECURE BUSINESS COMMUNICATIONS: Our security tinted envelopes help prevent sensitive information from being seen, providing an added layer of privacy when sending confidential information, financial statements, legal papers, and more (Sold as 1 Each/Box, 500 total envelopes) SELF SEAL DESIGN: Simply peel off the protective self seal closure strip, press the wallet flap to seal for quick and easy mailing, saving you time – no need to moisten or lick these envelopes RELIABLE MAILING SOLUTION: Made from 24 lbs. white woven paper for durability, these #8 double-window envelopes are designed to withstand the rigors of the postal system, keeping your documents safe and secure RESTOCK IN BULK: Keep plenty of envelopes on hand for all of your business needs with our bulk pack of 500 business envelopes, measuring 8-5/8 x 3-5/8 inches – perfect for sending out invoices, checks, contracts, or other important documents WE ARE STAPLES: The line between work and life is blurring. We have solutions to keep your teams productive, connected and inspired – Whether you know exactly what you need, or you're looking for tools and inspiration to hit goals, Staples is here for you! The line between work and life is blurring. We have solutions to keep your teams productive, connected and inspired – Whether you know exactly what you need, or you're looking for tools and inspiration to hit goals, Staples is here for you! Ensure secure mailing with Staples #8 Double-Window Security Tint Self-Sealing Envelopes. Perfect for sending checks, invoices, and confidential documents, these self-sealing envelopes feature a security tint that keeps sensitive information hidden from view during transit. The 24-pound wove construction provides durability and strength, while the convenient double-side window ensures recipient and sender addresses are clearly visible. These #8 self-sealing envelopes are designed for easy, secure use, making them ideal for businesses or individuals who prioritize privacy and efficiency in their mailings.